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Flexio_EnDat2.2

Flexio_EnDat2.2#

Overview#

This example demonstrates how to access EnDat2.2 device based on Flexio.

Supported Boards#

FRDM-MIMXRT1186
Hardware requirements

  • USB Type-C cable

  • frdmimxrt1186 board

  • Personal Computer

  • Power supply 24V

  • Motor control board (FRDM-LVPMSM-FA)

  • EnDat2.2 sensor

Board settings

Insert FRDM-LVPMSM-FA board into Arduino interface. Connect EnDat2.2 sensor and power supply to FRDM-LVPMSM-FA

EnDat2.2 connection:

INSTANCE(FRDM-LVPMSM-FA)  CONNECTS TO  INSTANCE(EnDat2.2 sensor)
Pin Name        Board Location              Signal Name
ENC_CLK_P          J70-2                     CLOCK_P
ENC_CLK_N          J70-7                     CLOCK_N
ENC_DATA_IO_P      J70-4                     DATA_P
ENC_DATA_IO_N      J70-9                     DATA_N
VENC               J70-1                     UP - Power supply voltage
GND                J70-6                     GND

SW90 setting:

SW[1-2] OFF:ON Half duplex
SW[3]   ON     Echo Disabled
SW[4]   ON     ENDAT is used.

SW30 setting - Select the appropriate voltage based on the properties of the sensor

SW[1] ON 3.3V
SW[2] ON 5.2V
SW[3] ON 9V
SW[4] ON 12V

Jumpers:

J300: pin1 <--> pin2
Prepare the Demo

  1. Connect a micro USB cable between the host PC and the J23(FTDI_DEBUG) USB port on the target board.

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Either re-power up your board or launch the debugger in your IDE to begin running the example.

Running the demo

The log below shows the output of the demo in the terminal window:

  FlexIO EnDat2.2 Demo.
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